194477-08-2Relevant academic research and scientific papers
Synthesis of novel ring systems: Synthesis of imidazo[1,2-c]-1,2,4- triazolo[4,3-a]pyrimido[5',4':4,5]thieno[2,3-e]pyrimidine derivatives
Geies
, p. 500 - 503 (2007/10/03)
A series of partially hydrogenated imidazo[1,2- c]pyrimido[5',4':4,5]thieno[2,3-e]pyrimidines (5-11) have been synthesized from the o-aminonitrile 3 through the reaction with ethylene diamine and subsequent condensation of the resulting intermediate 4 with orthoester, carbon disulfide and aldehydes. The triazolo derivatives 13-16 were achieved through the reaction of the hydrazino compound 12 with reagents such as acetic anhydride, ethyl chloroformate and carbon disulfide.
